rìa xờm
Definition
- Noun (Technical/Industrial):
- Flash or burr: The thin, rough, and often sharp excess material, typically metal or plastic, that forms along the edge or seam of a cast, molded, stamped, or machined part during manufacturing.
- Runner or sprue: In foundry work, it can also refer to the channel (the runner system) through which molten metal flows into a mold cavity, or the waste material (the sprue) that solidifies in this channel.
Usage Examples
- Noun:
- Sau khi đúc, cần phải loại bỏ rìa xờm khỏi chi tiết. (After casting, the flash must be removed from the part.)
- Rìa xờm của vật đúc cần được cắt bỏ cẩn thận. (The sprue from the casting needs to be carefully cut off.)
Advanced Usage
- This term is almost exclusively used in technical, industrial, and manufacturing contexts, particularly in metalworking, plastic injection molding, and foundry operations.
Variants and Related Words
- Ba via: A less common, alternative term for "flash" or "burr" in some technical contexts.
- Rìa: Means "edge" or "border" in general Vietnamese. "Rìa xờm" is a compound term where "rìa" specifies the location (edge) and "xờm" describes the rough, uneven quality.
Synonyms
- Flash: Excess material from a mold.
- Burr: A rough edge left after cutting or machining.
- Sprue: The waste material from a casting channel.
Notes on Usage
- "Rìa xờm" is a specialized technical term. In everyday language, to describe a rough edge on a non-industrial object, one might simply use "rìa" (edge) or "cạnh sắc" (sharp edge).
- The reference to "masselotte" from the Vietnamese-French dictionary is a technical foundry term for a "feeder head" or "riser," which is a reservoir of molten metal to compensate for shrinkage. This is a related but distinct concept from "flash," indicating the term may have a broader technical application in specific fields.